Immune Support!"Colloidal Silver" has been used since the late 1800's in countless applications‚ and encompasses a wide variety of silver products. Many contain (claimed or unclaimed) salts‚ proteins‚ compounds or stabilizers - all of which affect the safety and efficacy of silver.Bio-Active Silver Hydrosol represents the ultimate refinement of the colloidal silver category. It contains 98% positively charged silver‚ in pharmaceutical-grade purified water. This unique silver species‚ with a verified and unmatched particle size‚ remains in its most active state for use within the body.